Motion in A Straight Line

Question: A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time



1) \[6\,s\]
2) 36 s
3) 38 s
4) None of these
Solution: Explanation: Explanation

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